Black diamond necklaces and pendants in solid 14K or 18K gold — bezel solitaires, heart pendants, initial pendants and halo designs, each handcrafted to order. A black diamond pendant is a popular gift for anniversaries, birthdays and holidays, and a natural match for a black diamond engagement ring.
Black diamond necklace FAQ
Are black diamonds real diamonds? Yes. Black diamonds are genuine carbon diamonds whose color comes from dense dark inclusions (natural) or from treatment. They measure 10 on the Mohs scale, the same as white diamonds, so they are suitable for daily wear.
Natural or treated black diamond — which does Segal use? Both are available. Natural black diamonds are rarer and cost more; treated black diamonds are natural diamonds darkened by heat or irradiation and look identical to the eye. Black moissanite is offered as a lower-cost alternative on most designs.
What chain comes with a black diamond pendant? Each pendant is supplied on a matching solid gold chain; see the listing for available chain lengths.
Is a black diamond necklace a good gift? Yes — it suits any outfit, needs no special care, and the opaque stone reads bold without being flashy. Free engraving is included on request.
Custom-made in the USA · lifetime warranty · free resizing · free shipping · 30-day returns · updated 2026. See the complete black diamond guide.
